remove unused file

rule-doc-generator.php

@@ -1,15 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-use Rector\RuleDocGenerator\Category\RectorCategoryInferer;
-use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
-
-return static function (ContainerConfigurator $containerConfigurator): void {
-    $services = $containerConfigurator->services();
-
-    $services->defaults()
-        ->autowire();
-
-    $services->set(RectorCategoryInferer::class);
-};